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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 78 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) white-green-red (b) green-white-brown (c) green-white-orange (d) green-white-red
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) red-orange-orange (b) orange-red-red (c) orange-red-yellow (d) orange-red-orange
  5. 5.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) grey-white-black (b) white-violet-black (c) violet-white-black (d) violet-white-brown
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) green-white-orange (b) white-green-red (c) white-green-orange (d) white-green-yellow
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-brown (b) red-green-brown (c) green-red-black (d) green-red-red
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) brown-green-red (b) green-brown-orange (c) green-brown-brown (d) green-brown-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-orange-brown (b) red-red-black (c) red-red-red (d) red-red-brown
  22. 22.🌈 In the resistor colour code, which number does orange stand for?
  23. 23.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does red stand for?
  28. 28.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-red (b) grey-orange-red (c) orange-grey-brown (d) orange-grey-orange
  33. 33.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does blue stand for?
  35. 35.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) white-brown-orange (b) brown-white-red (c) brown-white-yellow (d) brown-white-orange
  37. 37.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) red-brown-black (b) brown-black-brown (c) red-black-black (d) brown-black-black
  39. 39.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) white-red-black (b) grey-red-black (c) grey-red-brown (d) red-grey-black

Answer key

  1. the one nearest an end
  2. 5 %
  3. green-white-red
  4. orange-red-orange
  5. 410
  6. 62
  7. violet-white-black
  8. white-green-orange
  9. 9
  10. green-red-brown
  11. 1
  12. 4.2
  13. 21000
  14. 760
  15. 3300
  16. 3400
  17. 380
  18. 4
  19. 0
  20. green-brown-red
  21. red-red-brown
  22. 3
  23. 50000
  24. 64
  25. 25
  26. 66
  27. 2
  28. 5.8
  29. 1.6
  30. 52000
  31. 610
  32. orange-grey-red
  33. 6
  34. 6
  35. 65
  36. brown-white-orange
  37. 88
  38. brown-black-black
  39. 350
  40. grey-red-black

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